var express = require('express');
var router = express.Router();
const {
  getList,
  getDetail,
  newBlog,
  updateBlog,
  delBlog
} = require('../controller/blog')
const { SuccessModel, ErrorModel } = require('../model/resModel')
const loginCheck = require('../middleware/loginCheck')

router.get('/list', (req, res, next) => {
  let author = req.query.author || ''
  const keyword = req.query.keyword || '' 

  if(req.query.isadmin) {
    // 管理员界面
    if(req.session.username == null) {
      // 未登录
      res.json(
        new ErrorModel('未登录')
      )
      return
    }
    // 强制查询自己的博客
    author = req.session.username
  }

  let result = getList(author, keyword)
  return result.then(listData => {
    res.json(
      new SuccessModel(listData)
    )
  })
});

router.get('/detail', (req, res, next) => {
  const result = getDetail(req.query.id);
  return result.then(data => {
    res.json(
      new SuccessModel(data)
    )
  })
})

router.post('/new', loginCheck, (req, res, next) => {
  req.body.author = req.session.username  
  const result = newBlog(req.body)
  return result.then(data => {
    res.json(
      new SuccessModel(data)
    )
  })
})

router.post('/update', loginCheck, (req, res, next) => {
  const result = updateBlog(req.query.id, req.body)
  return result.then(val => {
    if(val) {
      res.json(
        new SuccessModel()
      )
    } else {
      res.json(
        new ErrorModel("更新博客失败")
      )
    }
  })
})

router.post('/del', loginCheck, (req, res, next) => {
  const author = req.session.username  // 假数据，待开发登录时再改成真实数据
  const result = delBlog(req.query.id, author);
  return result.then(val => {
    if(val) {
      res.json(
        new SuccessModel()
      )
    } else {
      res.json(
        new ErrorModel("删除博客失败")
      )
    }
  })
})
module.exports = router;
